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Thursday, December 11, 2014

US Navy’s first laser weapon cleared for combat, blows up a boat, a small plane

Earlier in the year, the US Navy deployed its first combat-ready laser weapon system in the Persian Gulf — and now, after some field testing, we have a glorious video of the laser being used to blow up (unmanned) boats and drones. I’m happy to report that laser weapons are as awesome as you may have hoped — even if they don’t look quite like the beam weapons from Star Wars or Star Trek.
The Navy’s Laser Weapon System (LaWS) was deployed to the Persian Gulf back in April, on the USS Ponce — a fairly humdrum amphibious ship. The LaWS had been extensively tested on land, but the Navy had to see if all of the various systems would work while bobbing around at sea. As you can see in the video below (which I strongly encourage you to watch), the answer is a resounding “yes, LaWS works very well.”
The LaWS consists of a 30-kilowatt solid-state infrared laser, a Phalanx CIWS (close-in weapon system) radar detection and tracking system, and a special computer terminal that controls the LaWS. Somewhat amusingly, the main interface with LaWS is a controller that looks a lot like an Xbox gamepad — but more ruggedized and military-looking (pictured below). In the video, the LaWS disables a small Scan Eagle-class UAV, detonates a rocket-propelled grenade (RPG), and burns out the engine of a small inflatable boat (RHIB). Following these successful tests, the US Navy has given the commander of USS Ponce permission to use the laser weapon in combat.




As far as the US Navy is concerned, they see laser weaponry as a good way of taking out small boats and planes that get uncomfortably close to its ships. Laser weapons can be fired very quickly, and the cost per shot is very low (something like $1, as opposed to thousands of dollars for a small missile). At 30 kilowatts (which is pretty weak for a laser), we’re not looking at a weapon that will change the rules of engagement — but worry not, the Office of Naval Research (ONR) is already looking at developing a 150-kilowatt laser system, for testing in 2016 or 2017. At that kind of power output, you are then talking about a laser that can punch holes in the hulls of other large ships, or explode someone’s head from a few miles away.
 

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